Blacksmithsj shears



W. S. RBI-IVE. Blacksmiths Shears.

No. 226,105- Patented Mar. 30, I880.

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NITED STATES WINFIELD S. REEVE, OF RICEVILLE, IOWA.

BLACKSMITHS SHEARS.

SPECIFICATION forming part of Letters Patent N0. 226,105, dated March30, 1880.

Application filed July 9, 1879.

To all whom it may concern Be it known that I, WINFIELD S. REEVE, ofRiceville, in the county of Mitchell and State of Iowa, have inventedanew and Improved Blacksmiths Shears, of which the following is aspecification.

The object of my invention is to provide an improvement intrimming-shears for blacksmiths use.

The invention consists in connecting the cam-lever with the movable jawby a slotted plate, so that the operator may stand behind and over hiswork, thus being enabled to cut to a line.

In the accompanying drawings, Figure 1 is a side elevation of myimprovement, and Fig. 2 is a top plan or view of the same.

Similar letters of reference indicate corresponding parts.

teferrin g to the drawings, A is the stationary jaw of the shears,having a cutting-edge, a, and on its upper side, parallel thereto, aguard, I), through or under which the metal is thrust and by which it isheld, so as to be acted on by the shears.

B is the upper or movable jaw, pivoted at one end to the side of A, andat the opposite end heldbetween upright guides G G. In the guides, abovethe jaw, is fulcrumed a lever, D, having on its under side, at thefulcrum, an eccentric face or cam, D, in one side whereof is asemicircular groove, 0, parallel to the face of the cam.

E is alink having two parallel sides. In one upper angle is a pin orstud, d, which projects into the groove 0. In the center is a diagonalslot, 0, through which a headed stud is passed and entered into themovable jaw.

A guard, F, fixed to the side of the inside guide, extends over the linkE and in line with its outside edge. This furnishes a guard to keep thelink in connection with the cam, and

at the same time a guide for leading it up and down.

On the side of the movable jaw next to the fixed one is a blade orcutting-edge, a, which moves with a shear out against the edge of a asthejaw is moved down.

By operating the lever on its fulcrum itdraws the link up, and this, inturn, elevates the jaw B; but when the lever is turned down the camfaceD, operating on the end of the jaw, forces it down with great power,causing the blade a to move across a with a shear out, so as to sever ortrim any object placed between the jaws. The movement thus obtained forthe shears is a powerful one, and the operator can stand close up to hiswork when using the shears.

I am aware that it is not broadly new to connect a cam-lever by anintermediate connection with the movable jaw of a shear or punch; but mydevice is believed to have practical advantages. WVhen the jaw and leverare connected by my diagonally-slotted plate the plate is caused to movethe length of the di agonal of a parallelogram while the jaw moves onlythe length of one side, thus gaining power at the expense of velocity.Also, the lever being thrown directly over the movable jaw B, oneworkman onlyis required where two were heretofore necessary, the sameman being able to feed and operate mine at the same time.

What I claim as new and of my invention 1s In combination with thecam-slotted lever D and the movable jaw 13, the diagonallyslotted plateE, connected with lever and jaw by pins, as shown and described.

WINFIELD SCOTT REEVE.

Witnesses:

JOHN THOMPSON, L. B. DUNTON.

